For Emex
Brandbyge. 1993. In Kubitzki, K., J.G. Rohwer, and V. Bittrich, eds. 1993. The families and genera of vascular plants. II. Flowering plants – Dicotyledons – Magnoliid, Hamamelid and Caryophyllid families. Springer, Berlin. 653 pp. Google Scholar
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Koenemann, D.M., L. Kistler, and J.M. Burke. 2023. A plastome phylogeny of Rumex (Polygonaceae) illuminates the divergent evolutionary histories of docks and sorrels. Molec. Phylogen. Evol. 182: 107755. Google Scholar
Schuster, T.M., J.L. Reveal, M.J. Bayly, and K.A. Kron. 2015. An updated molecular phylogeny of Polygonoideae (Polygonaceae): relationships of Oxygonum, Pteroxygonum, and Rumex, and a new circumscription of Koenigia. Taxon 64: 1188-1298. Google Scholar